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Kotlin - 字串操作

<div>indexOf 與 substring</div><ul><li><div>indexOf</div></li><li><div>substring</div></li>&...

Kotlin - Nullable

<div><div>Nullable</div><ul><li><div>“String?” in return type shows the function may return null</div></li>&l...

Kotlin - Nullable 可空型別

<div><div>Nullable</div><ul><li><div>回傳型別中的 “String?” 表示這個函式可能回傳 null</div></li><li><div>呼叫端需要用 “...

Kotlin - Functions Basic

<ul><li><div>Function parameter is read-only</div></li></ul><div></div><div>Ex. Private function (Defau...

Kotlin - 函式基礎

<ul><li><div>函式參數是唯讀的</div></li></ul><div></div><div>範例:Private 函式(預設是 public)</div><div>&l...

kotlin - when

<div>When</div><div><div>package examples</div><div></div><div>fun main() {</div><div>    var nam...

Kotlin - when 表達式

<div>When</div><div><div>package examples</div><div></div><div>fun main() {</div><div>    var nam...

Sprint Boot - List files to Flux

Books suggestion@GetMapping("/unable_files")public Flux<FileInfo> wrongListFiles() throws IOException {    return Flux.fromIterable...

Spring Boot - Helloworld

<div>Download Spring Initializer</div><div>https://start.spring.io/#!type=gradle-project&language=java&platformVersion=2.2.7.RELEAS...